EP0540805B1 - Dispositif d'alignement pour une extension de flèche - Google Patents

Dispositif d'alignement pour une extension de flèche Download PDF

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Publication number
EP0540805B1
EP0540805B1 EP92103242A EP92103242A EP0540805B1 EP 0540805 B1 EP0540805 B1 EP 0540805B1 EP 92103242 A EP92103242 A EP 92103242A EP 92103242 A EP92103242 A EP 92103242A EP 0540805 B1 EP0540805 B1 EP 0540805B1
Authority
EP
European Patent Office
Prior art keywords
boom
housing
section
rod
assembly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP92103242A
Other languages
German (de)
English (en)
Other versions
EP0540805A1 (fr
Inventor
William E. Hull
Henry D. Barthalow
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kidde Industries Inc
Original Assignee
Kidde Industries Inc
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Filing date
Publication date
Application filed by Kidde Industries Inc filed Critical Kidde Industries Inc
Publication of EP0540805A1 publication Critical patent/EP0540805A1/fr
Application granted granted Critical
Publication of EP0540805B1 publication Critical patent/EP0540805B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
    • B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
    • B66C23/702—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic with a jib extension boom
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths

Definitions

  • the invention relates to a crane boom according to the preamble of claim 1.
  • a side stowable jib or boom extension is provided for connection to the nose assembly of the fly section or next adjacent boon section, as disclosed in U.S. Patents 3,785,505, dated January 15, 1974; and 4,483,447, dated November 20, 1984.
  • U.S. Pat. 3,785,505 shows an extension jib swingable on the axis of support pin 59, 116, from its stored position on the side of the boom, to move the apertures on the end of the jib into alignment with apertures in rods on the boom nose assembly. Pins are then inserted through the apertures to connect one end of the jib to one side of the boom nose assembly. The pivot connection of support pin 59, 116 is then removed and the jib swung around 180° until the jibs ends, on the opposite side of the jib, move into connecting alignment with the apertures in the rods on the opposite side of the boom nose assembly, and pins are inserted therethrough to complete the connection.
  • the boom extension When moving the boom extension from the stowed position on the side of the telescopic boom, to the operative position, wherein the boom extension extends outwardly in alignment with the longitudinal axis of the boom, the boom extension is pivotally connected to one side of the nose assembly of the boom section and then swung around and connected to the other side of the nose assembly.
  • the connections are made by a plurality of pins extending through aligned holes provided in the cooperating end portions of the boom extension and nose assembly of the fly section.
  • the alignment device of the present invention has been devised, to thereby eliminate the need of employing the ground force employed heretofore by crane operators, whereby the connection of the boom extension to the boom section is facilitated.
  • the boom extension alignment device of the present invention comprises, essentially, a first abutment assembly slidably mounted on the nose portion of a boom section, and a second abutment assembly mounted on another boom section.
  • the boom sections are movable relative to each other, whereby the first and second abutment assemblies are engageable to thereby force the first abutment assembly against one end of the boom extension, to thereby align the pin connection holes between the boom extension and boom section.
  • the telescope cylinder retract force and relative telescopic movement between the boom sections and the associated abutment assemblies facilitate the alignment of the pin holes.
  • the alignment device 1 of the present invention is adapted for use on a multi-section telescopic crane boom 2 having a side stowable jib or boom extension 3 movable to an operative position for connection to the nose assembly 4 of a boom section 5, wherein the boom extension 3 is pivotally connected to one side of the nose assembly 4, as at 6, and then swung around and connected to the other side of the nose assembly, as at 7.
  • the nose assembly 4 includes the conventional, vertically spaced horizontal shafts 8 and 9 to which cable sheaves 10 are attached.
  • the opposite ends of the nose assembly shafts 8 and 9 are flattened, as at a 8a and 9a and provided with apertures or holes 8b, 9b.
  • the jib 3 or boom extension is of the truss type including four corner struts 3a, each terminating in a bifurcated arm 3b having holes 3c alignable with the nose assembly shaft holes 8b and 9b through which a pin 11 is insertable, to thereby provide a clevis connection between the boom extension 3 and nose assembly 4.
  • the upper and lower clevis connections at 6 can be made easily in order to pivotally connect the boom extension to the nose assembly 4 for swinging the boom extension 3 around for connection to the nose assembly as at 7. It has been further experienced that the upper clevis connection, at 7, can also be readily accomplished to partly connect the boom extension 3 to the nose assembly 4; however, due to manufacturing tolerances and the weight of the boom extension, the lower clevis connection at 7 may not be able to be made because the holes 3c in the bifurcated arm 3b may not be fully aligned with the holes 9b in the nose assembly shaft portion 9a.
  • the alignment device 1 of the present invention has been devised and, as shown in Fig. 3, comprises a first abutment assembly 12 slidably mounted on the nose portion 4 of the boom section 5, and a second abutment assembly 13 mounted on another boom section 14 of the multi-section crane boom 2, it being understood by those skilled in the art that the nose assembly boom section 5 and boom section 14 and other boom sections in the multi-section crane boom are movable relative to each other in telescopic fashion by hydraulic cylinders 15 and 16.
  • the alignment device is shown on a three section boom with hydraulic extension cylinder 16 connected between base section 14 and mid-section 14a, and hydraulic extension cylinder 15 connected to extend fly section 5 from mid-section 14a.
  • the device is also operable on a two section telescopic boom, in a boom having more than three sections, as well as on booms in which the telescopic sections extend equally or proportionally and simultaneously from the base section by an arrangement of cables, or the like, in combination with a hydraulic extension cylinder, all of which are well known in the art.
  • abutment assembly 12 comprises a rod 12a slidably mounted in a cylindrical housing 12b fixedly mounted on the side 4a of the nose assembly 4 by a bracket 17 extending outwardly therefrom.
  • the rod 12a is provided with a threaded bore 12c for receiving a bolt 12d having a nut 12e threaded thereon.
  • the headed end 12f of the bolt 12d extends axially from the end of the rod 12a and its axial position or length can be adjusted by turning the bolt 12d in the bore 12c and locking its position therein by turning the nut 12e against the retaining washer on the end face of the bore 12c.
  • the opposite end portion of the rod 12a is provided with flat portions 12g, whereby one tool can be placed on the flat portions 12g, to hold the rod fixed with a wrench while other tools such as wrenches are employed for turning the bolt 12d and nut 12e.
  • the rod 12a terminates in an enlarged head portion 12h which functions to retain the rod in housing 12h, and which is adapted to forcibly engage the bifurcated arm 3b of the lower clevis connection, to be described more fully hereinafter.
  • the abutment assembly 13 comprises a bar 13a slidably mounted in a housing 18 fixedly connected, as shown in Figs. 3 &8, to a depending portion 19 of the collar 20 of the boom section 14.
  • the bar 13a is provided with an aperture 13b alignable with apertures 18a provided in the side walls of the housing 18 for receiving a removable pin 13c, whereby the position of the bar 13a within the housing 18 can be varied from a retracted position, as shown in Figs. 1, 3, to an extended position, as shown in Figs. 4, 5, 6 and 7.
  • the end of the bar 13a is provided with a stop pin 13d engageable with the end face of the housing 18, the opposite end of the bar 13a having an enlarged head portion 13e which is engageable with the bolt head 12f of the abutment assembly 12.
  • the boom extension 3 is swung around to its outwardly extending working position and the upper clevis connection is made at 7, while the apertures 3c and 9b at the lower connection remain misaligned, as shown in Figs. 2 and 3.
  • the boom nose assembly is then slightly extended, as shown in Fig 4, by extending at least the boom section 5 by means of the boom extension means such as the hydraulic cylinder 15.
  • the bar 13a is then moved from its retracted position, as shown in Fig. 3, to its extended position, as shown in Fig.
  • the alignment device of the present invention can be retrofitted on existing crane booms and is constructed and arranged to facilitate the connection of a boom extension to a nose assembly in a manner more quickly accomplished than heretofore, by use of the retract force of the boom telescoping cylinder.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)

Claims (8)

  1. Flèche de grue (2) ayant au moins des première et seconde sections de flèche télescopiques (5, 14) mobiles l'une par rapport à l'autre et une extension de flèche (3) pouvant être rangée sur le côté, pouvant être basculée d'une position de rangement vers une position de travail et être raccordée à un ensemble d'extrémité (4) se trouvant sur la première section de flèche (5) par des raccordements à chape supérieur et inférieur (6, 7, 8, 9, 3b) de chaque côté de l'ensemble d'extrémité (4), chaque raccordement à chape comportant un bras fourchu (3b) muni d'ouvertures (3c) sur l'extension de flèche (3) pouvant être rangée sur le côté, et pouvant être inséré sur une partie d'arbre (8a, 9a) de l'ensemble d'extrémité muni d'ouvertures (8b, 9b), caractérisée par un dispositif d'alignement (1) relié fonctionnellement entre la première section de flèche (5) et la seconde section de flèche (14), de telle sorte que lors d'un mouvement télescopique relatif entre la première section de flèche (5) et ladite seconde section de flèche (14), l'extension de flèche (3) pouvant être rangée sur le côté est sollicitée par le dispositif d'alignement (1) pour aligner les ouvertures (3c) qu'elle comporte avec les ouvertures (9b) se trouvant dans la partie d'arbre (9a) de l'ensemble d'extrémité, afin de faciliter l'insertion d'une broche (11) à travers les ouvertures alignées (3c, 9b).
  2. Flèche de grue selon la revendication 1, dans laquelle le dispositif d'alignement (1) comprend un premier ensemble de butée (12) monté sur l'ensemble d'extrémité (4) de la première section de flèche (5) et un second ensemble de butée (13) monté sur ladite seconde section de flèche (14) de la flèche de grue (2), lesdits ensembles de butée (12, 13) s'engageant l'un contre l'autre lors de l'alignement desdites ouvertures (3c, 9b).
  3. Flèche de grue selon la revendication 2, dans laquelle le premier ensemble de butée (12) comprend un logement (12b) monté de façon fixe sur un côté de l'ensemble d'extrémité (4), une tige (12a) montée coulissante dans ledit logement (12b), ladite tige (12a) ayant une partie d'extrémité (12f) s'étendant vers l'extérieur dudit logement (12b) et pouvant être sollicitée par le second ensemble de butée (13), l'autre partie d'extrémité (12h) de ladite tige (12a) s'étendant vers l'extérieur du logement (12b) et pouvant être sollicitée par le bras fourchu (3b) se trouvant sur l'extension de flèche (3).
  4. Flèche de grue selon la revendication 3, dans laquelle ladite partie d'extrémité (12f) de la tige (12a) comprend un alésage fileté (12c) réalisé dans ladite tige, un boulon (12) monté par vissage dans ledit alésage (12c) et se prolongeant axialement à partir de celui-ci, une tête (12f) disposée sur ledit boulon (12d), et un écrou (12e) monté par vissage sur ledit boulon (12d) entre la tête (12f) et la face d'extrémité du logement (12b), la position du boulon (12d) dans la tige (12a) pouvant ainsi être ajustée.
  5. Flèche de grue selon la revendication 2, dans laquelle le second ensemble de butée (13) comprend un logement (18) monté de façon fixe sur ladite autre section de flèche (14), une barre (13a) montée coulissante dans ledit logement (18), des ouvertures (18, 13b) étant disposées dans les parois latérales dudit logement (18) et dans ladite barre (13a), une broche (13c) pouvant être insérée à travers lesdites ouvertures (18a, 13b) pour monter de façon fixe ladite barre (13a) dans ledit logement (18), ladite barre (13a) ayant une partie d'extrémité (13e) s'étendant axialement vers l'extérieur dudit logement (18), et ladite partie d'extrémité (13e) étant destinée à s'engager sur ledit premier ensemble de butée (12).
  6. Flèche de grue selon la revendication 3, comportant une partie de tête (12h) sur ladite autre partie d'extrémité de ladite tige (12a).
  7. Flèche de grue selon la revendication 5, comportant une partie de tête agrandie (13e) sur ladite partie d'extrémité de ladite barre (13a), s'étendant vers l'extérieur dudit logement (18).
  8. Flèche de grue selon la revendication 1, dans laquelle le bras fourchu (3b) se trouvant sur l'extension de flèche (3) est sollicité par le dispositif d'alignement (1).
EP92103242A 1991-09-13 1992-02-26 Dispositif d'alignement pour une extension de flèche Expired - Lifetime EP0540805B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US759675 1991-09-13
US07/759,675 US5111945A (en) 1991-09-13 1991-09-13 Boom extension alignment device

Publications (2)

Publication Number Publication Date
EP0540805A1 EP0540805A1 (fr) 1993-05-12
EP0540805B1 true EP0540805B1 (fr) 1994-04-06

Family

ID=25056544

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92103242A Expired - Lifetime EP0540805B1 (fr) 1991-09-13 1992-02-26 Dispositif d'alignement pour une extension de flèche

Country Status (9)

Country Link
US (1) US5111945A (fr)
EP (1) EP0540805B1 (fr)
JP (1) JPH0688758B2 (fr)
KR (1) KR970002210B1 (fr)
AU (1) AU642823B2 (fr)
CA (1) CA2061817C (fr)
DE (1) DE69200096T2 (fr)
ES (1) ES2052396T3 (fr)
MX (1) MX9202360A (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5673805A (en) * 1995-02-28 1997-10-07 National Crane Corporation Jib pin alignment jack assembly
CA2198953C (fr) * 1996-03-04 2000-10-10 Michael J. Wanek Piece de liaison desaxee de fleche relevable
US6131750A (en) * 1997-05-28 2000-10-17 Link-Belt Construction Equipment Co Connection system for boom extension
CA2505796C (fr) * 2002-07-22 2012-01-03 Monosolrx Llc Emballage et distribution d'une forme posologique a dissolution rapide
US7337912B1 (en) 2007-02-08 2008-03-04 Manitowoc Crane Companies, Inc. Automatically deployable boom extension and method of deploying same
US20080197094A1 (en) * 2007-02-20 2008-08-21 Bond Anthony E Aerial lift including a stowable jim boom and stowable work platform
JP5117786B2 (ja) * 2007-08-10 2013-01-16 株式会社タダノ ジブ付クレーン
US7878346B1 (en) 2008-08-25 2011-02-01 Link-Belt Construction Equipment Co., L.P., Lllp Adaptable boom extension for a mobile crane having a telescoping boom
JP5248952B2 (ja) * 2008-08-29 2013-07-31 株式会社タダノ ジブ付きクレーン車のジブ格納装置
CN101723259B (zh) * 2009-12-30 2012-07-18 安徽柳工起重机有限公司 汽车起重机副臂安装装置
DE102015001619B4 (de) * 2015-02-09 2021-03-04 Liebherr-Werk Ehingen Gmbh Auslegersystem für einen Mobilkran sowie Mobilkran
JP6531448B2 (ja) * 2015-03-20 2019-06-19 株式会社タダノ ジブ連結構造
US10647552B1 (en) 2015-09-25 2020-05-12 Link-Belt Cranes, L.P., Lllp Fly connection system for a crane boom
CN105271012A (zh) * 2015-09-29 2016-01-27 徐州建机工程机械有限公司 一种新型液压穿销装置
CN106395645B (zh) * 2016-12-02 2018-10-02 徐州重型机械有限公司 风电臂翻转方法及起重机
US10589966B2 (en) 2017-03-02 2020-03-17 Manitowoc Crane Companies, Llc Jib coupling system for jib stowage
CN115043337B (zh) * 2022-08-15 2023-08-11 徐州重型机械有限公司 一种臂架系统、起重机及臂架系统控制方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3785505A (en) * 1970-12-15 1974-01-15 Kidde & Co Walter Side stowable jib for crane booms and jib mounting
US3944082A (en) * 1974-12-20 1976-03-16 Harnischfeger Corporation Locking means for relatively movable boom sections of boom of mobile crane
US4141455A (en) * 1977-07-14 1979-02-27 Harnischfeger Corporation Means for storing and connecting jib on telescopic crane boom
US4483447A (en) * 1982-05-26 1984-11-20 Kidde, Inc. Safety mounting for side stowable boom extension or jib

Also Published As

Publication number Publication date
KR970002210B1 (ko) 1997-02-25
ES2052396T3 (es) 1994-07-01
CA2061817C (fr) 1995-07-11
AU642823B2 (en) 1993-10-28
JPH0688758B2 (ja) 1994-11-09
DE69200096D1 (de) 1994-05-11
EP0540805A1 (fr) 1993-05-12
DE69200096T2 (de) 1994-08-04
AU1821692A (en) 1993-03-25
MX9202360A (es) 1993-03-01
CA2061817A1 (fr) 1993-03-14
JPH05193891A (ja) 1993-08-03
KR930005897A (ko) 1993-04-20
US5111945A (en) 1992-05-12

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